F01B 11/007
In which the movement in only one direction is obtained by a
Official title: {in which the movement in only one direction is obtained by a single acting piston motor, e.g. with actuation in the other direction by spring means}
F01B11/007 (In which the movement in only one direction is obtained by a) appears on 58 US grants and 49 published applications in this corpus.
Search patents in F01B- Granted patents
- 58
- Published applications
- 49
- Assignees
- 30
- Inventors
- 83
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 4 |
| 2011 | 1 | 1 |
| 2012 | 1 | 8 |
| 2013 | 3 | 2 |
| 2014 | 3 | 4 |
| 2015 | 2 | 2 |
| 2016 | 3 | 5 |
| 2017 | 4 | 3 |
| 2018 | 1 | 3 |
| 2019 | 3 | 6 |
| 2020 | 6 | 0 |
| 2021 | 1 | 1 |
| 2022 | 3 | 4 |
| 2023 | 1 | 1 |
| 2024 | 4 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- High-efficiency linear generator23 Sep 2025US 12,421,890 B2Mainspring Energy, Inc.
- Linear electric generator8 Oct 2024US 12,113,427 B2Yafa Innovations Ltd.
- High-efficiency linear generator4 Jun 2024US 12,000,331 B2Mainspring Energy, Inc.
- Thermodynamic cycle process performing transfer between mechanical and heat energies23 Jan 2024US 11,879,337 B2Sarus GmbH & Co. KG
- Vibratory plate and its engine2 Jan 2024US 11,859,532 B2
- High-efficiency linear generator29 Aug 2024US 2024/0287930 A1Mainspring Energy, Inc.
- A linear electric generator2 May 2024US 2024/0146152 A1Yafa Innovations Ltd.
- High-efficiency linear generator30 Mar 2023US 2023/0101969 A1Mainspring Energy, Inc.
- Thermodynamic cycle process performing transfer between mechanical and heat energies7 Jul 2022US 2022/0213790 A1Sarus GmbH & Co. KG
- Vibratory Plate and Its Engine26 May 2022US 2022/0162985 A1
Most cited
By later US patents
- Internal combustion apparatus39US 4,377,991 AAnvar Agence Nationale de Valorisation de la Recherche · 1983
- Generic free-piston engine with transformer valve assembly for reducing throttling losses35US 6,863,507 B1Mannesmann Rexroth GmbH · 2005
- Free-piston electric current generator26US 4,403,153 A1983
- Volumetric proportioning diluter22US 4,076,465 A1978
- Liquid inertia tool19US 4,484,638 A1984